431357490 has 48 divisors (see below), whose sum is σ = 1187506008. Its totient is φ = 108261888.

The previous prime is 431357483. The next prime is 431357491. The reversal of 431357490 is 94753134.

431357490 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 403889409 + 27468081 = 20097^2 + 5241^2 .

It is not an unprimeable number, because it can be changed into a prime (431357491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139437 + ... + 142496.

Almost surely, 2^431357490 is an apocalyptic number.

431357490 is an abundant number, since it is smaller than the sum of its proper divisors (756148518).

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

431357490 is a wasteful number, since it uses less digits than its factorization.

431357490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281963 (or 281960 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 431357490 is about 20769.1475511153. The cubic root of 431357490 is about 755.5776699682.

It can be divided in two parts, 43135 and 7490, that added together give a 4-th power (50625 = 15⁴).

The spelling of 431357490 in words is "four hundred thirty-one million, three hundred fifty-seven thousand, four hundred ninety".