402680354041 has 27 divisors (see below), whose sum is σ = 471571221069. Its totient is φ = 342851096448.

The previous prime is 402680353993. The next prime is 402680354047. The reversal of 402680354041 is 140453086204.

The square root of 402680354041 is 634571.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 193278933225 + 209401420816 = 439635^2 + 457604^2 .

It is not a de Polignac number, because 402680354041 - 2⁷ = 402680353913 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402680354047) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1194897025 + ... + 1194897361.

Almost surely, 2^402680354041 is an apocalyptic number.

402680354041 is the 634571-st square number.

402680354041 is the 317286-th centered octagonal number.

It is an amenable number.

402680354041 is a deficient number, since it is larger than the sum of its proper divisors (68890867028).

402680354041 is an frugal number, since it uses more digits than its factorization.

402680354041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 402680354041 in words is "four hundred two billion, six hundred eighty million, three hundred fifty-four thousand, forty-one".