1542628 has 6 divisors (see below), whose sum is σ = 2699606. Its totient is φ = 771312.

The previous prime is 1542599. The next prime is 1542661. The reversal of 1542628 is 8262451.

It can be written as a sum of positive squares in only one way, i.e., 1542564 + 64 = 1242^2 + 8^2 .

It is a super-2 number, since 2×1542628² = 4759402292768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1542596 and 1542605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192825 + ... + 192832.

2^1542628 is an apocalyptic number.

It is an amenable number.

1542628 is a deficient number, since it is larger than the sum of its proper divisors (1156978).

1542628 is a wasteful number, since it uses less digits than its factorization.

1542628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385661 (or 385659 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 1542628 is about 1242.0257646281. The cubic root of 1542628 is about 115.5456863421.

The spelling of 1542628 in words is "one million, five hundred forty-two thousand, six hundred twenty-eight".