340426457 has 8 divisors (see below), whose sum is σ = 389595456. Its totient is φ = 291391632.

The previous prime is 340426423. The next prime is 340426481. The reversal of 340426457 is 754624043.

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

It is not a de Polignac number, because 340426457 - 2⁸ = 340426201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340426487) 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, 28043 + ... + 38304.

It is an arithmetic number, because the mean of its divisors is an integer number (48699432).

Almost surely, 2^340426457 is an apocalyptic number.

It is an amenable number.

340426457 is a deficient number, since it is larger than the sum of its proper divisors (49168999).

340426457 is an equidigital number, since it uses as much as digits as its factorization.

340426457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67087.

The product of its (nonzero) digits is 80640, while the sum is 35.

The square root of 340426457 is about 18450.6492297697. The cubic root of 340426457 is about 698.2448935847.

The spelling of 340426457 in words is "three hundred forty million, four hundred twenty-six thousand, four hundred fifty-seven".