1532420644 has 12 divisors (see below), whose sum is σ = 2768243968. Its totient is φ = 741493800.

The previous prime is 1532420621. The next prime is 1532420657. The reversal of 1532420644 is 4460242351.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6178992 + ... + 6179239.

Almost surely, 2^1532420644 is an apocalyptic number.

It is an amenable number.

1532420644 is a deficient number, since it is larger than the sum of its proper divisors (1235823324).

1532420644 is a wasteful number, since it uses less digits than its factorization.

1532420644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12358266 (or 12358264 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 1532420644 is about 39146.1446888452. The cubic root of 1532420644 is about 1152.9027222544.

Adding to 1532420644 its reverse (4460242351), we get a palindrome (5992662995).

The spelling of 1532420644 in words is "one billion, five hundred thirty-two million, four hundred twenty thousand, six hundred forty-four".