400190652 has 24 divisors (see below), whose sum is σ = 1037531600. Its totient is φ = 133396848.

The previous prime is 400190641. The next prime is 400190653. The reversal of 400190652 is 256091004.

400190652 is a `hidden beast` number, since 4 + 0 + 0 + 1 + 9 + 0 + 652 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400190653) 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, 1852627 + ... + 1852842.

Almost surely, 2^400190652 is an apocalyptic number.

It is an amenable number.

400190652 is an abundant number, since it is smaller than the sum of its proper divisors (637340948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400190652 is a wasteful number, since it uses less digits than its factorization.

400190652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3705482 (or 3705474 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 400190652 is about 20004.7657321949. The cubic root of 400190652 is about 736.9233424636.

The spelling of 400190652 in words is "four hundred million, one hundred ninety thousand, six hundred fifty-two".