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1400474 = 2700237
BaseRepresentation
bin101010101111010011010
32122011002102
411111322122
5324303344
650003402
714622005
oct5257232
92564072
101400474
11877219
12576562
133a05aa
1428653c
151c9e4e
hex155e9a

1400474 has 4 divisors (see below), whose sum is σ = 2100714. Its totient is φ = 700236.

The previous prime is 1400453. The next prime is 1400479. The reversal of 1400474 is 4740041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4740041 = 15131391.

It can be written as a sum of positive squares in only one way, i.e., 889249 + 511225 = 943^2 + 715^2 .

It is a super-2 number, since 2×14004742 = 3922654849352, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1400479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350117 + ... + 350120.

21400474 is an apocalyptic number.

1400474 is a deficient number, since it is larger than the sum of its proper divisors (700240).

1400474 is an equidigital number, since it uses as much as digits as its factorization.

1400474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700239.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 1400474 is about 1183.4162412271. The cubic root of 1400474 is about 111.8815179873.

The spelling of 1400474 in words is "one million, four hundred thousand, four hundred seventy-four".

Divisors: 1 2 700237 1400474