400238602 has 4 divisors (see below), whose sum is σ = 600357906. Its totient is φ = 200119300.

The previous prime is 400238593. The next prime is 400238611. The reversal of 400238602 is 206832004.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (400238593) and next prime (400238611).

It can be written as a sum of positive squares in only one way, i.e., 305935081 + 94303521 = 17491^2 + 9711^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100059649 + ... + 100059652.

Almost surely, 2^400238602 is an apocalyptic number.

400238602 is a deficient number, since it is larger than the sum of its proper divisors (200119304).

400238602 is a wasteful number, since it uses less digits than its factorization.

400238602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200119303.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 400238602 is about 20005.9641607197. The cubic root of 400238602 is about 736.9527734884.

The spelling of 400238602 in words is "four hundred million, two hundred thirty-eight thousand, six hundred two".