1431449590 has 8 divisors (see below), whose sum is σ = 2576609280. Its totient is φ = 572579832.

The previous prime is 1431449587. The next prime is 1431449609. The reversal of 1431449590 is 959441341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1431449590² = 4098095857422336200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71572470 + ... + 71572489.

It is an arithmetic number, because the mean of its divisors is an integer number (322076160).

Almost surely, 2^1431449590 is an apocalyptic number.

1431449590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1431449590 is a deficient number, since it is larger than the sum of its proper divisors (1145159690).

1431449590 is a wasteful number, since it uses less digits than its factorization.

1431449590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143144966.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 1431449590 is about 37834.5026397863. The cubic root of 1431449590 is about 1127.0037284803.

The spelling of 1431449590 in words is "one billion, four hundred thirty-one million, four hundred forty-nine thousand, five hundred ninety".