1401824655 has 192 divisors, whose sum is σ = 3234816000. Its totient is φ = 544008960.

The previous prime is 1401824647. The next prime is 1401824663. The reversal of 1401824655 is 5564281041.

It is a happy number.

1401824655 is a `hidden beast` number, since 1 + 401 + 8 + 246 + 5 + 5 = 666.

1401824655 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1401824647) and next prime (1401824663).

It is not a de Polignac number, because 1401824655 - 2³ = 1401824647 is a prime.

It is a super-2 number, since 2×1401824655² = 3930224726731738050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 7044246 + ... + 7044444.

It is an arithmetic number, because the mean of its divisors is an integer number (16848000).

Almost surely, 2^1401824655 is an apocalyptic number.

1401824655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1401824655 is an abundant number, since it is smaller than the sum of its proper divisors (1832991345).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1401824655 is a wasteful number, since it uses less digits than its factorization.

1401824655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 1401824655 is about 37440.9489062444. The cubic root of 1401824655 is about 1119.1747361818.

The spelling of 1401824655 in words is "one billion, four hundred one million, eight hundred twenty-four thousand, six hundred fifty-five".