1400505290 has 16 divisors (see below), whose sum is σ = 2602229760. Its totient is φ = 542130960.

The previous prime is 1400505277. The next prime is 1400505319. The reversal of 1400505290 is 925050041.

It is a super-2 number, since 2×1400505290² = 3922830134635968200, which contains 22 as substring.

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, 2258570 + ... + 2259189.

It is an arithmetic number, because the mean of its divisors is an integer number (162639360).

Almost surely, 2^1400505290 is an apocalyptic number.

1400505290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1400505290 is a deficient number, since it is larger than the sum of its proper divisors (1201724470).

1400505290 is a wasteful number, since it uses less digits than its factorization.

1400505290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4517797.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1400505290 is about 37423.3254802403. The cubic root of 1400505290 is about 1118.8235121633.

The spelling of 1400505290 in words is "one billion, four hundred million, five hundred five thousand, two hundred ninety".