401251402 has 8 divisors (see below), whose sum is σ = 601971300. Its totient is φ = 200594304.

The previous prime is 401251343. The next prime is 401251451. The reversal of 401251402 is 204152104.

It can be written as a sum of positive squares in 2 ways, for example, as 391208841 + 10042561 = 19779^2 + 3169^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×401251402² = 322005375213931208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401251402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6624 + ... + 29092.

Almost surely, 2^401251402 is an apocalyptic number.

401251402 is a deficient number, since it is larger than the sum of its proper divisors (200719898).

401251402 is a wasteful number, since it uses less digits than its factorization.

401251402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31400.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 401251402 is about 20031.2606193420. The cubic root of 401251402 is about 737.5738672350.

The spelling of 401251402 in words is "four hundred one million, two hundred fifty-one thousand, four hundred two".