1533980 has 24 divisors (see below), whose sum is σ = 3681888. Its totient is φ = 525888.

The previous prime is 1533977. The next prime is 1534019. The reversal of 1533980 is 893351.

1533980 = T₂₄₉ + T₂₅₀ + ... + T₂₉₀.

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, 5339 + ... + 5618.

It is an arithmetic number, because the mean of its divisors is an integer number (153412).

2^1533980 is an apocalyptic number.

1533980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1533980 is an abundant number, since it is smaller than the sum of its proper divisors (2147908).

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

1533980 is a wasteful number, since it uses less digits than its factorization.

1533980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10973 (or 10971 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1533980 is about 1238.5394624315. The cubic root of 1533980 is about 115.3293645450.

The spelling of 1533980 in words is "one million, five hundred thirty-three thousand, nine hundred eighty".