1406997430 has 16 divisors (see below), whose sum is σ = 2534997024. Its totient is φ = 562265280.

The previous prime is 1406997373. The next prime is 1406997457. The reversal of 1406997430 is 347996041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55551 + ... + 76810.

It is an arithmetic number, because the mean of its divisors is an integer number (158437314).

Almost surely, 2^1406997430 is an apocalyptic number.

1406997430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1406997430 is a deficient number, since it is larger than the sum of its proper divisors (1127999594).

1406997430 is a wasteful number, since it uses less digits than its factorization.

1406997430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133431.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 1406997430 is about 37509.9644094739. The cubic root of 1406997430 is about 1120.5496425262.

The spelling of 1406997430 in words is "one billion, four hundred six million, nine hundred ninety-seven thousand, four hundred thirty".