340743400 has 24 divisors (see below), whose sum is σ = 792228870. Its totient is φ = 136297280.

The previous prime is 340743379. The next prime is 340743409. The reversal of 340743400 is 4347043.

It can be written as a sum of positive squares in 3 ways, for example, as 267845956 + 72897444 = 16366^2 + 8538^2 .

It is a super-2 number, since 2×340743400² = 232212129287120000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (340743409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 851659 + ... + 852058.

Almost surely, 2^340743400 is an apocalyptic number.

It is an amenable number.

340743400 is an abundant number, since it is smaller than the sum of its proper divisors (451485470).

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

340743400 is a wasteful number, since it uses less digits than its factorization.

340743400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703733 (or 1703724 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 340743400 is about 18459.2361705462. The cubic root of 340743400 is about 698.4615191172.

It can be divided in two parts, 340743 and 400, that added together give a palindrome (341143).

The spelling of 340743400 in words is "three hundred forty million, seven hundred forty-three thousand, four hundred".