1542620 has 24 divisors (see below), whose sum is σ = 3268944. Its totient is φ = 611456.

The previous prime is 1542599. The next prime is 1542661. The reversal of 1542620 is 262451.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1542592 and 1542601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2459 + ... + 3021.

It is an arithmetic number, because the mean of its divisors is an integer number (136206).

2^1542620 is an apocalyptic number.

1542620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1542620 is an abundant number, since it is smaller than the sum of its proper divisors (1726324).

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

1542620 is a wasteful number, since it uses less digits than its factorization.

1542620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1542620 is about 1242.0225440788. The cubic root of 1542620 is about 115.5454866035.

The spelling of 1542620 in words is "one million, five hundred forty-two thousand, six hundred twenty".