1424990691 has 16 divisors (see below), whose sum is σ = 2202885120. Its totient is φ = 908689320.

The previous prime is 1424990689. The next prime is 1424990759. The reversal of 1424990691 is 1960994241.

It is not a de Polignac number, because 1424990691 - 2¹ = 1424990689 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1424990641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1146715 + ... + 1147956.

It is an arithmetic number, because the mean of its divisors is an integer number (137680320).

Almost surely, 2^1424990691 is an apocalyptic number.

1424990691 is a deficient number, since it is larger than the sum of its proper divisors (777894429).

1424990691 is a wasteful number, since it uses less digits than its factorization.

1424990691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294703 (or 2294697 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 1424990691 is about 37749.0488754353. The cubic root of 1424990691 is about 1125.3061069245.

The spelling of 1424990691 in words is "one billion, four hundred twenty-four million, nine hundred ninety thousand, six hundred ninety-one".