400061402 has 16 divisors (see below), whose sum is σ = 674352000. Its totient is φ = 176615472.

The previous prime is 400061377. The next prime is 400061407. The reversal of 400061402 is 204160004.

It is not an unprimeable number, because it can be changed into a prime (400061407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333902 + ... + 335097.

It is an arithmetic number, because the mean of its divisors is an integer number (42147000).

Almost surely, 2^400061402 is an apocalyptic number.

400061402 is a deficient number, since it is larger than the sum of its proper divisors (274290598).

400061402 is a wasteful number, since it uses less digits than its factorization.

400061402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669037.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 400061402 is about 20001.5349910951. The cubic root of 400061402 is about 736.8439989495.

The spelling of 400061402 in words is "four hundred million, sixty-one thousand, four hundred two".