740870023 has 4 divisors (see below), whose sum is σ = 764769088. Its totient is φ = 716970960.

The previous prime is 740869999. The next prime is 740870027. The reversal of 740870023 is 320078047.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 740870023 - 2⁹ = 740869511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 23899033 = 740870023 / (7 + 4 + 0 + 8 + 7 + 0 + 0 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740870027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11949486 + ... + 11949547.

It is an arithmetic number, because the mean of its divisors is an integer number (191192272).

Almost surely, 2^740870023 is an apocalyptic number.

740870023 is a deficient number, since it is larger than the sum of its proper divisors (23899065).

740870023 is a wasteful number, since it uses less digits than its factorization.

740870023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23899064.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 740870023 is about 27218.9276607290. The cubic root of 740870023 is about 904.8585080425.

The spelling of 740870023 in words is "seven hundred forty million, eight hundred seventy thousand, twenty-three".