1564034340 has 96 divisors (see below), whose sum is σ = 5058474624. Its totient is φ = 356853760.

The previous prime is 1564034317. The next prime is 1564034341. The reversal of 1564034340 is 434304651.

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 = 1564034298 and 1564034307.

It is not an unprimeable number, because it can be changed into a prime (1564034341) 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, 58479 + ... + 80918.

It is an arithmetic number, because the mean of its divisors is an integer number (52692444).

Almost surely, 2^1564034340 is an apocalyptic number.

1564034340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1564034340 is an abundant number, since it is smaller than the sum of its proper divisors (3494440284).

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

1564034340 is a wasteful number, since it uses less digits than its factorization.

1564034340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139437 (or 139435 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 1564034340 is about 39547.8740262988. The cubic root of 1564034340 is about 1160.7769121654.

Adding to 1564034340 its reverse (434304651), we get a palindrome (1998338991).

The spelling of 1564034340 in words is "one billion, five hundred sixty-four million, thirty-four thousand, three hundred forty".