420290692 has 6 divisors (see below), whose sum is σ = 735508718. Its totient is φ = 210145344.

The previous prime is 420290639. The next prime is 420290693. The reversal of 420290692 is 296092024.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 417548356 + 2742336 = 20434^2 + 1656^2 .

It is not an unprimeable number, because it can be changed into a prime (420290693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52536333 + ... + 52536340.

Almost surely, 2^420290692 is an apocalyptic number.

It is an amenable number.

420290692 is a deficient number, since it is larger than the sum of its proper divisors (315218026).

420290692 is a wasteful number, since it uses less digits than its factorization.

420290692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105072677 (or 105072675 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 420290692 is about 20500.9924637809. The cubic root of 420290692 is about 749.0599731063.

The spelling of 420290692 in words is "four hundred twenty million, two hundred ninety thousand, six hundred ninety-two".