740420457 has 8 divisors (see below), whose sum is σ = 1128259776. Its totient is φ = 423097392.

The previous prime is 740420453. The next prime is 740420479. The reversal of 740420457 is 754024047.

740420457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 740420457 - 2² = 740420453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (740420453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17629038 + ... + 17629079.

It is an arithmetic number, because the mean of its divisors is an integer number (141032472).

Almost surely, 2^740420457 is an apocalyptic number.

It is an amenable number.

740420457 is a deficient number, since it is larger than the sum of its proper divisors (387839319).

740420457 is a wasteful number, since it uses less digits than its factorization.

740420457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35258127.

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 740420457 is about 27210.6680733862. The cubic root of 740420457 is about 904.6754458242.

The spelling of 740420457 in words is "seven hundred forty million, four hundred twenty thousand, four hundred fifty-seven".