1540764 has 36 divisors (see below), whose sum is σ = 3937024. Its totient is φ = 508032.

The previous prime is 1540753. The next prime is 1540783. The reversal of 1540764 is 4670451.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4404 + ... + 4740.

2^1540764 is an apocalyptic number.

It is an amenable number.

1540764 is an abundant number, since it is smaller than the sum of its proper divisors (2396260).

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

1540764 is a wasteful number, since it uses less digits than its factorization.

1540764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1540764 is about 1241.2751508026. The cubic root of 1540764 is about 115.4991285705.

It can be divided in two parts, 1540 and 764, that added together give a square (2304 = 48²).

The spelling of 1540764 in words is "one million, five hundred forty thousand, seven hundred sixty-four".