401361634 has 4 divisors (see below), whose sum is σ = 602042454. Its totient is φ = 200680816.

The previous prime is 401361629. The next prime is 401361647. The reversal of 401361634 is 436163104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 348755625 + 52606009 = 18675^2 + 7253^2 .

It is a super-2 number, since 2×401361634² = 322182322494299912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100340407 + ... + 100340410.

Almost surely, 2^401361634 is an apocalyptic number.

401361634 is a deficient number, since it is larger than the sum of its proper divisors (200680820).

401361634 is a wasteful number, since it uses less digits than its factorization.

401361634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200680819.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 401361634 is about 20034.0119297159. The cubic root of 401361634 is about 737.6414032801.

The spelling of 401361634 in words is "four hundred one million, three hundred sixty-one thousand, six hundred thirty-four".