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1038428 = 221715271
BaseRepresentation
bin11111101100001011100
31221202110022
43331201130
5231212203
634131312
711553326
oct3754134
91852408
101038428
1164a206
12420b38
132a4871
141d0616
15157a38
hexfd85c

1038428 has 12 divisors (see below), whose sum is σ = 1924272. Its totient is φ = 488640.

The previous prime is 1038421. The next prime is 1038449. The reversal of 1038428 is 8248301.

It is a super-2 number, since 2×10384282 = 2156665422368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1038397 and 1038406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1038421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7568 + ... + 7703.

It is an arithmetic number, because the mean of its divisors is an integer number (160356).

21038428 is an apocalyptic number.

It is an amenable number.

1038428 is a deficient number, since it is larger than the sum of its proper divisors (885844).

1038428 is a wasteful number, since it uses less digits than its factorization.

1038428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15292 (or 15290 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1038428 is about 1019.0328748377. The cubic root of 1038428 is about 101.2648669934.

The spelling of 1038428 in words is "one million, thirty-eight thousand, four hundred twenty-eight".

Divisors: 1 2 4 17 34 68 15271 30542 61084 259607 519214 1038428