1601402994 has 32 divisors (see below), whose sum is σ = 3654858240. Its totient is φ = 519373296.

The previous prime is 1601402993. The next prime is 1601403017. The reversal of 1601402994 is 4992041061.

It is a happy number.

1601402994 is a `hidden beast` number, since 1 + 601 + 40 + 2 + 9 + 9 + 4 = 666.

It is a super-3 number, since 3×1601402994³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1601402993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398754 + ... + 402749.

It is an arithmetic number, because the mean of its divisors is an integer number (114214320).

Almost surely, 2^1601402994 is an apocalyptic number.

1601402994 is an abundant number, since it is smaller than the sum of its proper divisors (2053455246).

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

1601402994 is a wasteful number, since it uses less digits than its factorization.

1601402994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801551 (or 801545 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1601402994 is about 40017.5335821687. The cubic root of 1601402994 is about 1169.9488603552.

The spelling of 1601402994 in words is "one billion, six hundred one million, four hundred two thousand, nine hundred ninety-four".