1490357 has 12 divisors (see below), whose sum is σ = 1667820. Its totient is φ = 1330560.

The previous prime is 1490353. The next prime is 1490369. The reversal of 1490357 is 7530941.

It can be written as a sum of positive squares in 2 ways, for example, as 421201 + 1069156 = 649^2 + 1034^2 .

It is not a de Polignac number, because 1490357 - 2² = 1490353 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13133 + ... + 13245.

It is an arithmetic number, because the mean of its divisors is an integer number (138985).

2^1490357 is an apocalyptic number.

It is an amenable number.

1490357 is a deficient number, since it is larger than the sum of its proper divisors (177463).

1490357 is a wasteful number, since it uses less digits than its factorization.

1490357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 1490357 is about 1220.8017857130. The cubic root of 1490357 is about 114.2255971771.

The spelling of 1490357 in words is "one million, four hundred ninety thousand, three hundred fifty-seven".