38403420 has 96 divisors (see below), whose sum is σ = 121153536. Its totient is φ = 9004800.

The previous prime is 38403361. The next prime is 38403433. The reversal of 38403420 is 2430483.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19522 + ... + 21398.

It is an arithmetic number, because the mean of its divisors is an integer number (1262016).

Almost surely, 2^38403420 is an apocalyptic number.

38403420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38403420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60576768).

38403420 is an abundant number, since it is smaller than the sum of its proper divisors (82750116).

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

38403420 is a wasteful number, since it uses less digits than its factorization.

38403420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 38403420 is about 6197.0492978514. The cubic root of 38403420 is about 337.3830815863.

It can be divided in two parts, 3840 and 3420, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 38403420 in words is "thirty-eight million, four hundred three thousand, four hundred twenty".