1345457040 has 160 divisors (see below), whose sum is σ = 4332389376. Its totient is φ = 345047040.

The previous prime is 1345457039. The next prime is 1345457041. The reversal of 1345457040 is 407545431.

It is an interprime number because it is at equal distance from previous prime (1345457039) and next prime (1345457041).

It is a junction number, because it is equal to n+sod(n) for n = 1345456992 and 1345457010.

It is not an unprimeable number, because it can be changed into a prime (1345457041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1435452 + ... + 1436388.

Almost surely, 2^1345457040 is an apocalyptic number.

1345457040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1345457040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2166194688).

1345457040 is an abundant number, since it is smaller than the sum of its proper divisors (2986932336).

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

1345457040 is a wasteful number, since it uses less digits than its factorization.

1345457040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177 (or 1171 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 1345457040 is about 36680.4721888909. The cubic root of 1345457040 is about 1103.9683224475.

The spelling of 1345457040 in words is "one billion, three hundred forty-five million, four hundred fifty-seven thousand, forty".