1007428 has 6 divisors (see below), whose sum is σ = 1763006. Its totient is φ = 503712.

The previous prime is 1007417. The next prime is 1007429. The reversal of 1007428 is 8247001.

It can be written as a sum of positive squares in only one way, i.e., 906304 + 101124 = 952^2 + 318^2 .

It is a super-2 number, since 2×1007428² = 2029822350368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1007399 and 1007408.

It is not an unprimeable number, because it can be changed into a prime (1007429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125925 + ... + 125932.

2^1007428 is an apocalyptic number.

It is an amenable number.

1007428 is a deficient number, since it is larger than the sum of its proper divisors (755578).

1007428 is a wasteful number, since it uses less digits than its factorization.

1007428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251861 (or 251859 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1007428 is about 1003.7071285988. The cubic root of 1007428 is about 100.2469894598.

The spelling of 1007428 in words is "one million, seven thousand, four hundred twenty-eight".