1401255545400 has 144 divisors (see below), whose sum is σ = 4706578726200. Its totient is φ = 373612919040.

The previous prime is 1401255545383. The next prime is 1401255545407. The reversal of 1401255545400 is 45455521041.

1401255545400 is a `hidden beast` number, since 1 + 4 + 0 + 12 + 55 + 54 + 540 + 0 = 666.

It is a super-2 number, since 2×1401255545400² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401255545407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12940282 + ... + 13048118.

Almost surely, 2^{1401255545400} is an apocalyptic number.

1401255545400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401255545400 is an abundant number, since it is smaller than the sum of its proper divisors (3305323180800).

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

1401255545400 is a wasteful number, since it uses less digits than its factorization.

1401255545400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115078 (or 115066 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The spelling of 1401255545400 in words is "one trillion, four hundred one billion, two hundred fifty-five million, five hundred forty-five thousand, four hundred".