1420402361 has 32 divisors (see below), whose sum is σ = 1811742720. Its totient is φ = 1085918400.

The previous prime is 1420402351. The next prime is 1420402363. The reversal of 1420402361 is 1632040241.

It is not a de Polignac number, because 1420402361 - 2⁶ = 1420402297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1420402363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147896 + ... + 157206.

It is an arithmetic number, because the mean of its divisors is an integer number (56616960).

Almost surely, 2^1420402361 is an apocalyptic number.

It is an amenable number.

1420402361 is a deficient number, since it is larger than the sum of its proper divisors (391340359).

1420402361 is a wasteful number, since it uses less digits than its factorization.

1420402361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9405.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1420402361 is about 37688.2257608394. The cubic root of 1420402361 is about 1124.0970165813.

The spelling of 1420402361 in words is "one billion, four hundred twenty million, four hundred two thousand, three hundred sixty-one".