340453740 has 48 divisors (see below), whose sum is σ = 1039933440. Its totient is φ = 82534080.

The previous prime is 340453721. The next prime is 340453769. The reversal of 340453740 is 47354043.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 340453698 and 340453707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257260 + ... + 258579.

It is an arithmetic number, because the mean of its divisors is an integer number (21665280).

Almost surely, 2^340453740 is an apocalyptic number.

340453740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340453740 is an abundant number, since it is smaller than the sum of its proper divisors (699479700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340453740 is a wasteful number, since it uses less digits than its factorization.

340453740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515862 (or 515860 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 30.

The square root of 340453740 is about 18451.3885656338. The cubic root of 340453740 is about 698.2635463717.

The spelling of 340453740 in words is "three hundred forty million, four hundred fifty-three thousand, seven hundred forty".